Free Mobile Speed Test — Check Your Mobile Page Speed
Test your website's mobile performance with real mobile CPU throttling and 4G network simulation — exactly how Google measures mobile Core Web Vitals.
Free — no account required for a single check. Sign up for continuous monitoring →
What the Mobile Speed Test checks
Mobile LCP
Mobile CLS
Mobile INP (via TBT)
Mobile PageSpeed score
Mobile vs desktop performance gap
Mobile-specific optimisation opportunities
How it works
Simulates a mid-range Android device with 4G network throttling — the baseline Google uses for Core Web Vitals field data collection.
Monitor continuously — not just once
This free tool runs a one-off check. AuditJet monitors your site on a schedule — alerting you when scores change, before performance regressions affect your rankings and revenue.
Mobile Speed Test — FAQ
Is the Mobile Speed Test free?
Yes — Mobile Speed Test is completely free to use. No account required for a single-URL check.
How does the Mobile Speed Test work?
Simulates a mid-range Android device with 4G network throttling — the baseline Google uses for Core Web Vitals field data collection.
What does the Mobile Speed Test check?
Mobile LCP. Mobile CLS. Mobile INP (via TBT). Mobile PageSpeed score. Mobile vs desktop performance gap. Mobile-specific optimisation opportunities.
How is this different from Google PageSpeed Insights?
Google PageSpeed Insights is a one-off manual tool. AuditJet adds continuous monitoring, regression alerting, and revenue impact on top of the same performance analysis — so you're notified when scores change, not just when you remember to check.